1243126 has 16 divisors (see below), whose sum is σ = 1945296. Its totient is φ = 595296.

The previous prime is 1243111. The next prime is 1243129. The reversal of 1243126 is 6213421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7840 + ... + 7996.

It is an arithmetic number, because the mean of its divisors is an integer number (121581).

2^1243126 is an apocalyptic number.

1243126 is a deficient number, since it is larger than the sum of its proper divisors (702170).

1243126 is a wasteful number, since it uses less digits than its factorization.

1243126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its digits is 288, while the sum is 19.

The square root of 1243126 is about 1114.9556044973. The cubic root of 1243126 is about 107.5239103115.

Adding to 1243126 its reverse (6213421), we get a palindrome (7456547).

It can be divided in two parts, 1243 and 126, that added together give a square (1369 = 37²).

The spelling of 1243126 in words is "one million, two hundred forty-three thousand, one hundred twenty-six".